\chapter{完全竞争市场}
\label{sec:competitive-markets}





\section{剩余需求的价格弹性}

对某企业$i$的剩余需求函数为：
\begin{equation}
D_i(p) = D(p) S_0(p)
\end{equation}
对于$p$求导，
\begin{equation}
\frac{{d{D_i}}}{{dp}}\cdot\frac{p}{q} = \frac{{dD}}{{dp}}\cdot\frac{p}{Q}\cdot\frac{Q}{q} - \frac{{d{S_0}}}{{dp}}\cdot\frac{p}{{{Q_0}}}\cdot\frac{{{Q_0}}}{q}
\end{equation}

\begin{equation}
{\varepsilon _i} = n\varepsilon  - (n - 1){\eta _0}
\end{equation}



\section*{推荐阅读}
\markright{推荐阅读}
\addcontentsline{toc}{section}{\hspace{-2.5em}推荐阅读}
